I could be wrong; I'm waiting for someone to agree, or not....... it's been more than 25 years since I had a VB apart.
5 of .25 plus one 3/8ball is correct, but some years had 3 different sizes.
I have never seen a ball in the lower half, but I have also never worked on an 84 D-100
IIRC the older ones had a 3/8 convertor check ball back in the 60s.
By the early 70s,I think, the 3/8 convertor check was gone,
But I remember finding some VBs with just one 11/32..I Don't recall what year(s) it might have been used, but if you pay attention, you will see the slightly larger cavity. IIRC that cavity was right beside a regular sized cavity.If you put a 3/8 in there you will not get high gear.
Ok I looked it up and 69 to 72 at least,had that 11/32 ball, you can't miss it; the cavity is obviously larger.
I have also recorded a few springs dimension over the years. As to the 2-3 spring, I have recorded ;
.625d x 1.0 long, natural color, 6.5 coils of .045 wire
BTW; if your KD mechanism is springy as it should be,and the lever is wired all the way back., then when in second gear,that lever is commanding the trans to stay in second a really long time. With tall tires and 3.23s, this could be 80 mph, or even more.
BTW: there are two .325 springs in the VB, of similar length
The KD I have recorded .325 x 1.275long,13 coils of .054 wire
and ; the TC regulator is .325 x 1.24 long,12.75 coils/.045 wire
I'm sorta remembering that the rooster comb detent spring is of similar size as well, but I didn't record it cuz as I recall , it was quite a bit stiffer and obvious to me where it went.
Ok I found a 6th 1/4"ball in 78 and up, right smack-dab in the center of the upper half ;
still nothing about a ball in the lower half.
